Explanation

We are given two sets:

- A = {1, 2, 3}  

- B = {2, 3, 4, 5}

Intersection (A ∩ B) means finding the common elements that are present in both sets A and B.

Now compare the elements:

- A contains: 1, 2, 3  

- B contains: 2, 3, 4, 5

The common elements are: 2 and 3

Explanation

Antonym of immortal is mortal (فانی).

Explanation

• During an isothermal process, the temperature remains constant.
• Meaning: "iso" (equal) + "thermal" (heat)
• For an ideal gas: internal energy doesn't change
• Energy flow: all heat added is converted into work done (or vice versa)
• Key law: follows Boyle's Law — if temperature is constant, pressure × volume = constant (PV= constant)

Explanation

The most serious environmental effect posed by hazardous wastes is Contamination of Groundwater.

Toxic substances from hazardous waste can seep into the soil and contaminate underground water sources.

It affecting ecosystems and human health.

Explanation

Bevel gears are specifically designed to transmit rotational power between shafts that intersect at a 90-degree angle.

Spur gears only transmit power between parallel shafts

Helical gears can transmit power between parallel or non-parallel shafts, but are not the primary choice for a 90-degree right-angle power transfer.  

Explanation

Laser yards or laser levels are tools used in construction and surveying to ensure surfaces are level or properly aligned.

Applications:  

   - Construction (walls, floors, ceilings)  

   - Surveying (land measurements)  

   - Interior Work (tile, cabinetry, wallpaper)

Saves Time & Increases Accuracy:  

   More precise than manual tools like spirit levels or chalk lines.

 Types:  

   - Rotary laser for 360° coverage  

   - Line laser for straight lines  

   - Dot laser for pinpoint accuracy

Explanation

Together with her husband, she was awarded half of the Nobel Prize for Physics in 1903.

In 1911 she received a second Nobel Prize, this time in Chemistry.

Born: November 7, 1867, Warsaw, Poland

Died: July 4, 1934, Passy, France

Discovered: Radium, Polonium

Explanation

Velocity is measured by a speedometer.

It is a device that measures the rate of change of an object's position with respect to time.

It typically measured in units of distance per unit time.

Such as kilometers per hour (km/h) or miles per hour (mph).

Explanation

Diamer-Bhasha Dam is constructed, on the River Indus 

between Kohistan district in Khyber Pakhtunkhwa and Diamer district in Gilgit Baltistan

 Its foundation stone was laid by the then Prime Minister of Pakistan in 1998

Opened: 2028

Height: 272 m

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ND10-1-2023

Explanation

Viruses cause typhus.

Typhus is an infectious disease transmitted by fleas or lice, with various types caused by different bacteria.

But the term can sometimes be used loosely in reference to viral infections.